Function create_fine_tuning_job 

pub fn create_fine_tuning_job<C, Fut, B, E>(
    client: C,
    request: &CreateFineTuningJobRequest,
) -> CreateFineTuningJob<Fut, B, E> 
where
    C: FnOnce(Request<String>) -> Fut,
    Fut: Future<Output = Result<Response<B>, E>>,
    B: Body,

Create fine-tuning job